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  Our Catalog   Test, Measure & Inspect   Temperature & Humidity

Temperature & Humidity - 374 - Extreame Savings! Save up to 49%


Extreame Savings! Up to 49% off on Temperature & Humidity at In The National Interest. Top brands include AcuRite, KETOTEK, Digital Aid, Gain Express, OneBom, KKmoon, Room Alert, FastFerment, CHETONE, Inkbird, Ranco, Taylor Precision Products, zenic, Lignomat USA, LTD, Ryobi, SP Scienceware, ETA hand2mind, KEYNICE, & RISEPRO. Hurry! Limited time offers. Offers valid only while supplies last.



AcuRite 06002M Wireless Temperature and Humidity Sensor
AcuRite 06002M Wireless Temperature and Humidity Sensor
By AcuRite
In Stock
$19.74

mpn: 06002M, ean: 0885699844322,

4.3 out of 5 stars with 267 reviews
AcuRite's temperature and humidity sensor has a built-in thermometer and hygrometer to measure environmental conditions with precision and accuracy. The sensor features a compact size, weather resistant design and integrated mounting options. The sensor wirelessly transmits its readings at 16 second intervals over distances up to 330 feet. Stay informed of temperature and humidity conditions in the places you care about with AcuRite's temperature and humidity sensor. Works with AcuRite models:


KETOTEK Digital Thermometer Temperature Meter Gauge, USB Power Supply Celsius/Fahrenheit Color LCD Display, Waterproof Sensor Probe Use For Car Computer PC Aquarium
KETOTEK Digital Thermometer Temperature Meter Gauge, USB Power Supply Celsius/Fahrenheit Color LCD Display, Waterproof Sensor Probe Use For Car Computer PC Aquarium
By KETOTEK
In Stock
$12.99

mpn: E0032usb,

4.3 out of 5 stars with 66 reviews
Specifications Temperature Range:From -50°C to 110°C / -58°F - 230°F (°C/°F switch) Fahrenheit to Celcius Selector Switch located on the back of unit. Accuracy: ±0.5°C Sensor type: NTC (10K/3435) Cord length: 3.3ft Water-proof sensor probe Working Voltage: DC 5-25V Working Current: Max. 20mA Working Temperature: -20°C-60°C Widely used in temperature in cars, aquariums, pet habitats, HVAC air ducts, computer towers and CPU temp, reading temperature inside or outside the home, test


Digital Aid Professional TDS, EC & Temperature Meter. 3 in 1. Professional Quality TDS Meter:0-9990ppm. Accurate and Reliable Water Test Meter. Ideal for Drinking Water, Aquariums. With Leather Case.
Digital Aid Professional TDS, EC & Temperature Meter. 3 in 1. Professional Quality TDS Meter:0-9990ppm. Accurate and Reliable Water Test Meter. Ideal for Drinking Water, Aquariums. With Leather Case.
By Digital Aid
In Stock
$15.47

mpn: TDS-001, ean: 0609408691485,

4.6 out of 5 stars with 101 reviews
Professional Quality Combination TDS Meter EC Meter and Temperature Meter The TDS EC Meter is a professional level meter that fits in your pocket! Ideal for all water quality testing, water purification applications, waste water regulation, aqua culture, hydroponics, laboratory and scientific testing, pools & spas, ecology testing, colloidal silver, water treatment and more. Features: * Large Backlit LCD Screen. * Lock function - makes it easy to read and record, press HOLD button then


AZ Instruments 4 Channel K Type Thermometer SD Card Data Logger Thermocouple Temperature + 2 Bead Type K-Thermocouple Probe
AZ Instruments 4 Channel K Type Thermometer SD Card Data Logger Thermocouple Temperature + 2 Bead Type K-Thermocouple Probe
By Gain Express
In Stock
$170.50
$143.90
You Save: 16%

mpn: A0188598, ean: 0600316546164,

4.3 out of 5 stars with 185 reviews
Need to do heavy work on temperatures? Taking multiple measurements? Recording temperature changes? Calculating temperature differences? And setting-up datalogging? Let this smart logger help. 4 Temperatures at once and just calculations and Set-up in one touch! A0188598 combines Measuring, Alarming and Datalogging functions. Get the 4 Temperature just by plugging-in the 4 K-Type Thermocouples and get all the 4 readings displayed on screen.Temperature calculations can be done by pressing he


OneBom Brewing Dial Thermometer, 1/2 NPT Stainless Steel, Quick Read with Dual Scale 0-220ºF & -10-100ºC (3'' Face with 2'' Probe for Brew Pot)
OneBom Brewing Dial Thermometer, 1/2 NPT Stainless Steel, Quick Read with Dual Scale 0-220ºF & -10-100ºC (3'' Face with 2'' Probe for Brew Pot)
By OneBom
In Stock
$18.90

mpn: 43237-2, ean: 0634759531838,

4.8 out of 5 stars with 217 reviews
Onebom concentrate on producing and selling high quality home brew products, you can get more surprise products from our store. Good products will bring you perfect experience for home brewing . Pls feel free to contact us if you have any questions or suggestions. We will reply you within 24h If you're looking for a way to read the temperature of your brew pot, look no further. Our OneBom Dial Thermometer can easily monitor the temperature of your boiling brew kettle. No more opening pot lids


Ketotek KT4000 Digital Thermostat Temperature Controller Waterproof sensor US Plug Outlet LCD 2 Stage Heating and Cooling Mode For Home Greenhouse Aquarium Industry
Ketotek KT4000 Digital Thermostat Temperature Controller Waterproof sensor US Plug Outlet LCD 2 Stage Heating and Cooling Mode For Home Greenhouse Aquarium Industry
By KETOTEK
In Stock
$45.99
$34.88
You Save: 24%

mpn: KT4000,

4.4 out of 5 stars with 220 reviews
90 DAY Warranty -- All KETOTEK customers enjoy 90 Day Warranty. You have no risk to try and we will provide you the best service! Specifications Power Supply: 110Vac±15% , 60hz Temperature control range: LS1~LS2℉ Temperature setpoint LS1 range: -19.9~LS2℉ Temperature setpoint LS2 range: LS1~199.9℉ Heating differential value:1~25℉ Cooling differential value:1~25℉ Accuracy: ±1℉ Resolution : 0.1℉ Sensor input: NTC Waterproof sensor 1m/3.28ft Relay contact capacity: Cool Heat(Max


KKmoon AC110-240V 10A LED Digital Intelligent Pre-wired Temperature Controller Outlet with Sensor Thermostat Heating Cooling Control Switch
KKmoon AC110-240V 10A LED Digital Intelligent Pre-wired Temperature Controller Outlet with Sensor Thermostat Heating Cooling Control Switch
By KKmoon
In Stock
$20.99

mpn: ZXE5092119542594XV, ean: 0611982191589,

4.1 out of 5 stars with 55 reviews
This temperature controller features pre-wired cord with a plug to install in your electrical socket, a output socket to plug your appliance, and the LED display shows current temperature and start/stop temperature. This device is fairly simple to set up and adjust, switch to heating or cooling mode freely. It is very accurate in keeping the temperature at the desired level. Plug and play design, easy to use. It is suitable for freezer, conditioner, green house, dog house,incubators,


Room Alert 3E Temperature and Environment Monitor w/PoE
Room Alert 3E Temperature and Environment Monitor w/PoE
By Room Alert
In Stock
$185.00

mpn: RA3E-ES0-BAS,

4.5 out of 5 stars with 92 reviews
Room Alert 3E is AVTECH's most economical solution for ''IT & Facilities Environment Monitoring, Alerting & More''. The Room Alert 3E temperature and environment monitor is designed specifically to assist with monitoring room temperature and other environment conditions (including humidity, flood, power, smoke, motion, and more) where a small footprint is needed, where access to electricity may not exist, when the investment cost needs to be minimal or deployment volume may be high. It is the


Fast Ferment Thermometer Stainless Steel Thermometer. Compatible with our 3 Gallon, 7.9 Gallon and 14 Gallon Conical Fermenters. FasterFerment Accessories (Stainless Steel Thermometer)
Fast Ferment Thermometer Stainless Steel Thermometer. Compatible with our 3 Gallon, 7.9 Gallon and 14 Gallon Conical Fermenters. FasterFerment Accessories (Stainless Steel Thermometer)
By FastFerment
In Stock
$18.99
$16.81
You Save: 11%

mpn: FF Thermo, ean: 0702877319475,

4.8 out of 5 stars with 284 reviews
This specially designed Fast Ferment thermometer stainless steel fits perfectly into the thermowell of your Fast Ferment conical fermenter, allowing you to easily and accurately monitor the fermentation temperature of your home-brew kit beer, wine, hard cider or kombuchaCONSISTENTLY MONITOR: With the FastFerment stainless steel thermometer you can consistently monitor your home brew fermentation without having to disturb the fermentation process. PERFECT FIT: The FastFerment conical fermenter


Moisture Meter CHETONE Digital Calibrated Wood Moisture Detector 2 pins Wood Portable Moisture Tester Water HD Digital LCD Display with one 9V Battery(Included) Range 0%~85% RH
Moisture Meter CHETONE Digital Calibrated Wood Moisture Detector 2 pins Wood Portable Moisture Tester Water HD Digital LCD Display with one 9V Battery(Included) Range 0%~85% RH
By CHETONE
In Stock
$24.97

ean: 7595703517830,

4.6 out of 5 stars with 24 reviews
1. Application This moisture meter is designed for testing moisture level in wood and building materials. Combined the micro controller technique and integrated characteristics for 4 material groups increase the accuracy of measurements. It is widely used for measuring the moisture scale of wood, wall board, cardboard, sheetrock, drywall, concrete, mortar, plaster or other building materials 2. Features Use on wood, wall board, sheet rock, cardboard, plaster, concrete, and mortar, etc. Big LCD


Inkbird 12 Periods Timer Stage ITC-310T-B Digital Heating & Cooling Pre-Wired Temperature Controller for Home Brewing, Greenhouse, Heating mat
Inkbird 12 Periods Timer Stage ITC-310T-B Digital Heating & Cooling Pre-Wired Temperature Controller for Home Brewing, Greenhouse, Heating mat
By Inkbird
In Stock
$44.99

mpn: ITC-310TB, ean: 0747380991862,

4.9 out of 5 stars with 177 reviews
ITC-310TB is a dual-relay outlet thermostat with programmable timer function, which can be set to automatically control 12 periods timer stage with different temperatures. The ITC-310TB is mainly used to control temperature during fermentation process of beer and wine brewing, also widely used in home brewing, aquarium, pet breeding, hatching, barbecue, boiler temperature control, geothermal temperature control, heating pump constant temperature cycle, strain culture fermentation, seed


RANCO ETC-111000 Digital Cold Temperature Control NEW
RANCO ETC-111000 Digital Cold Temperature Control NEW
By Ranco
In Stock
$54.50
$45.05
You Save: 17%

mpn: ETC-111000, ean: 0686608004338,

4.8 out of 5 stars with 181 reviews
RANCO ETC-111000 Digital Cold Temperature Control NEW. Dimensions: 6.52 inch high x 2.7 inch wide x 2.48 inch. SPDT output relay. 12/240 Input Voltage.RANCO. ELECTRONIC TEMPERATURE CONTROL. ETC111000.


Taylor Thermometers 9848EFDA Digital Thermometer, Long-Stem, Dual-Scale
Taylor Thermometers 9848EFDA Digital Thermometer, Long-Stem, Dual-Scale
By Taylor Precision Products
In Stock
$19.99
$16.25
You Save: 19%

mpn: 9848E,

4.3 out of 5 stars with 160 reviews
When it comes to safety and accuracy Taylor brand instruments have been trusted since 1851. With built-in hold and recalibration features and equipped with an easy to read LCD display, this unit will soon be your go to thermometer. Temperature range: -40° to 450°F or -40° to 232°C includes 1 - CR2032 lithium battery.Long-stem digital thermometer. Switchable between Celsius and Fahrenheit. Anti-microbial sleeve inhibits bacterial growth. Equipped with temperature hold feature. Quick 5 second


Dual Laser Infrared Thermometer, Zenic Professional Non-Contact Digital Temperature Measuring Gun with Adjustable Emissivity for Cooking / Brewing / Automobile & Industries, -50-650℃, D:S=12:1
Dual Laser Infrared Thermometer, Zenic Professional Non-Contact Digital Temperature Measuring Gun with Adjustable Emissivity for Cooking / Brewing / Automobile & Industries, -50-650℃, D:S=12:1
By zenic
In Stock
$49.99
$25.49
You Save: 49%

mpn: HT-817, ean: 0661273603017,

4.0 out of 5 stars with 44 reviews
TEMPERATURE RANGE: -58℉~ 1022℉ (-50℃ ~ 650℃), Perfect for cooking, barbecuing, automobile maintenance, HVAC working, fire-watch, electrical engineering and a host of other tasks. BETTER ACCURACY- (1) Dual Laser Guide the ideal distance to ensure higher-precision measurement than most other IR Thermometers; (2) A high distance-spot ratio of 12:1 allows you control how large of area you want to measure. EMISSIVITY ADJUSTABLE- Professional measure standard by the adjustable emissivity from


Lignomat Moisture Meter Mini-Ligno E/D
Lignomat Moisture Meter Mini-Ligno E/D
By Lignomat USA, LTD
In Stock
$137.50
$93.95
You Save: 32%

mpn: Lignomat Mini-Ligno, ean: 0718122389025,

4.8 out of 5 stars with 197 reviews
Bright red numeric display makes taking accurate moisture readings easy and error-free. Simply press the pins into the wood and the meter automatically turns on to provide a reading. Features a wide moisture range of 6-45 - low enough for professional furniture/cabinet makers and hardwood floor installers and high enough for construction-grade lumber, firewood, and wood turning blanks. Includes two standard 3/16'' pins, two 7/16'' pins for taking deeper core readings, wrist strap, pouch and 9V


Ryobi E49MM01 Digital LED Pinless Moisture Meter for Softwood, Drywall, and Masonry (9 Volt Battery Included)
Ryobi E49MM01 Digital LED Pinless Moisture Meter for Softwood, Drywall, and Masonry (9 Volt Battery Included)
By Ryobi
In Stock
$55.00
$36.49
You Save: 34%

mpn: E49MM01, ean: 0033287145911,

4.1 out of 5 stars with 126 reviews
Knowing the moisture levels in your walls, wood, and masonry can give you an estimate of the potential for mold growth throughout your home. To help you get an easy reading on these moisture levels, use the E49MM01 from Ryobi. It's very easy to use. Simply hold the sensor over whatever you're trying to read, set the device to read whatever material you're using (it's good for wood, drywall, and masonry), and look at the LED screen for a percentage. Additionally, you can listen to the audible


H-B DURAC B60800-3100 General Purpose Liquid-In-Glass Thermometer; -20 to 150°C, Total Immersion, Organic Liquid Fill
H-B DURAC B60800-3100 General Purpose Liquid-In-Glass Thermometer; -20 to 150°C, Total Immersion, Organic Liquid Fill
By SP Scienceware
In Stock
$13.00

mpn: B60800-3100,

4.7 out of 5 stars with 226 reviews
This economical H-B Instrument DURAC general purpose total immersion thermometer is filled with red spirit liquid and has a temperature range of -20 to 150°C. For use with chemical laboratories, universities, scientific institutions, food and beverage processing, petrochemical laboratories, pharmaceutical industry, medical industry, manufacturers, dairies, breweries, and distilleries. This thermometer features accuracy equivalent to the accuracy requirements of ANSI/SAMA Z236.1-1983, where


ETA hand2mind High-Range, Dual-Scale, Mercury-Free, Safety Thermometers for Indoor Science Use (Pack of 10)
ETA hand2mind High-Range, Dual-Scale, Mercury-Free, Safety Thermometers for Indoor Science Use (Pack of 10)
By ETA hand2mind
In Stock
$18.90

mpn: 23034-10, ean: 0848850106806,

4.7 out of 5 stars with 104 reviews
These high-range student safety thermometers are designed for classroom use. They are spirit-filled and mercury-free, along with having a recessed glass tube in a molded plastic case for safe classroom use. Each thermometer measures 6¾'' in length and features dual-scale temperature readings from -22°F to 240°F (increments of 2°) and -30°C to 120°C (increments of 1°). Set contains 10 thermometers. Science education products incorporate applied math and science principles into classroom


Keynice Digital Thermometer, Temperature Sensor USB Power Supply, Fahrenheit degree and Degrees Celsius color LCD Display, High Accurate-Black
Keynice Digital Thermometer, Temperature Sensor USB Power Supply, Fahrenheit degree and Degrees Celsius color LCD Display, High Accurate-Black
By KEYNICE
In Stock
$25.99
$13.99
You Save: 46%

mpn: AP-185-BK,

4.1 out of 5 stars with 77 reviews
High Quality Unit A very unique digital temperature meter with a 3.3 ft cable and remote temp sensor probe. Ideal for seeing temperature in cars, aquariums, pet habitats, HVAC air ducts, computer towers and CPU temp, reading temperature inside or outside the home, test equipment, farms, pools , jacuzzi, see outside air or water temperature in automobiles, vans, trucks, RVs and boats. The unit has a great professional look when flush or surface mounted onto any surface. Fahrenheit to Celcius


Dual Laser Infrared Thermometer, RISEPRO Digital Non-contact Portable Infrared Thermometer with Dual Laser Target Pointer -50°c to 650°c (-58°F to 1202°F) HT-817
Dual Laser Infrared Thermometer, RISEPRO Digital Non-contact Portable Infrared Thermometer with Dual Laser Target Pointer -50°c to 650°c (-58°F to 1202°F) HT-817
By RISEPRO
In Stock
$23.90

mpn: HT-817, ean: 0602860874311,

4.0 out of 5 stars with 252 reviews
Description So simple measuring: point, aim and press. Applications from internal electronic components to oven temperatures. Perfect reliable tool for householders, barbecue lovers, car owners, contractors and mechanics. It is practical for both indoor and outdoor use, non-contact infrared thermometer lets you safely measure surface temperatures from a distance while still maintaining laser-sharp accuracy. Measure extreme temperatures ranging from -50°C to 650°C (-58°F to 1202°F) without



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